Boiler cleaner



(No Model.) 4 Sheets-Sh eet 1.

P. W. HORNISH. BOILER CLEANER.

o. 42 ,019. Patented Apr. 22, 1890.

(No Model.) 4 Sheets-Sheet 2. F. W. HORNISH.

BOILER CLEANER.

No. 426,019. Patented Apr. 22, 1890,

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\ (No Model.) 4 SheetsSheet 3. 1 F. W. HORNISH. 1 BOILER CLEANER.

No. 426,019. Patented Apr. 22, 1890.

(No Model.) 4 Sheets-Sheet 4. F. W. HORNISH.

BOILER CLEANER.

N0. 426,019. Patented Apr. 22, 1890.

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UNITED STATES PATENT OFFICE.

FRANK V. IIORNISII, OF MATTOON, ILLINOIS, ASSIGNOR TO THE MECHANICAL BOILER CLEANER AND MANUFACTURING COMPANY,-OF SAME PLACE.

BOILER-CLEAN ER.

SPECIFICATION forming part of Letters Patent No. 426,019, dated April 22, 1890.

Application filed August 13, 1889.

thereon, which form a part of this specificaiion.

Figure 1 represents a side elevation of a locomotive to which I have applied my improvean enlarged scale, of the locomotive-boiler shell. Fig. 3 is a top plan view of the scum plate or collector, showing a portion of the dry pipe or superheater broken away at both ends. Fig. 4c is a vertical cross-section of the scum-plate, taken through the line a: x of Fig. 2 and showing the locomotive-superhcater in elevation and broken away. Fig. 5 is a vertical cross-section taken through the line y y of Fig. 3. Fig. 6 is a perspective view of the scum-plate. Fig. 7 is atransverse section of the boiler, showing the location of the set tling-drum and its connections.

The invention relates to boiler-cleaners.

The improvements consist in a surface or water-line boiler-cleaner, the construction and combination of parts of which will first be fully described and set forth, and the points of novelty then stated in the claims.

In the drawings, 1 represents the boilershell.

2 are the fire-tubes within the shell.

3 is the dry pipe or superheater common to boilers of this type.

5 represents the scumplate. It is provided centrally with a hood or saddle 4, which perinits'the scum-plate to straddle the superheater 3, so as to be arranged centrally within the boiler.

6 6 are the bottom plates of the scum-cot lector, and 7 is an oblique deflecting back wall in the rear of the bottom plates.

8 S are channels cast or otherwise formed on the under sides of the bottoiinplatcs.

Fig. 2 is a vertical cross-section, on

Serial No. 320,590. (No model.)

The channels 8 8 communicate in the rear with the eduction-openings 9 9 and at the other ends with the eduction-pipe 10 through the Y or yoke 11. The Y 11 also straddles the dry pipe 3 of the locomotive and thehood or saddle at; but the lat.ter,'if desired, may be cut away at that point.

12 represents the bolts which unite the Y- to the bottom plate of the scum-collector. These connections I prefer to make with ground-joints and intervening gaskets. The eduction-pipe 10 screws or is fastened to the top of the inverted Y.

13 represents an adjustable extension or wing, similar to those described in a former patent of mine, No. 370,060, which is adapted to be bolted to and form a continuation of the bottom plate 6. There may be one on each end of the scum-plate.

15 represents the settling-drum, which is of usual construction. This drum is preferably located transversely under the forward end of the locomotive, which enables me to carry it low and out of the way. I have found by practice that it works with excellent results in that position, as it prevents the water surging from end to end, thereby stirring up the sediment, which would result were the drum in line'with the length of the boiler.

The eduction-pipe 10 rises vertically through the shell of the boiler, and then descends around the outside of the boiler and connects with the upperpart of the settling-drum. The induction-pipe 16 connects with the settlingdrum, preferably, at the top and opposite end from the pipe 15, and passes along rearwardly under the boiler and down into the water-leg of the fire-box. A check-valve 17 is put into pipe 16, preferably at the elbow-joint near the water-leg. This valve is arranged to open automatically to deliver the current of water to the water-leg or the boiler, but closes against any tendency to a current in the contrary direction. Valves are provided in both pipes 10 and 16, so that access may be had to the parts when steam is up, or for any other purpose.

In my drawings I show my improvements applied to a boilerof the locomotive type; but it should not be understood that my improvements are limited in their application to locomotive-boilers alone. My invention is applicable to almost every type of steamgenerators, with or without slight modifications.

My invention shows in effect a double scumplate,eachacting independently of the other. The scum -plate draws to a double focus through the double eduction-openings 9 9, the sides of the hood or saddle at and the deflecting back wall 7 centering the scum and sediment at the eduction-openings and cansing such action.

- The peculiar construction of my scum-plate in providing an eduction-opening below the level of the bottom plate results in a whirling, vortioal, or whirlpool action, thereby drawing all sediment, scum, and other extraneous matter irresistibly down below the surface and out through the educt-ion-pipe to the settling-drum.

The difliculties heretofore encountered in successfully cleaning boilers of the locomoce'pt all the impurities of the water each side of the dry pipe outwardly to the shell. The space within the boiler cut up by the dry pipe and boiler-fines is so limited that it is only practicable to make the skimmer in a rigid piece, so that there is no adjusting necessary, except to make a connection with the eduction-pipe and adjust its height to the water-line. Locomotives to which my surface-scum plate has been attached run fully five thousand miles without washing out. The hood or saddle enables the scum-plate to set snugly about the dry pipe, so as to intercept all water between the pipe and plate. The side walls of the hood serve as side deflecting-walls in centering the water at the eduction-openings. Thus the surging mass of Water produced by the varying motion of the locomotive has all its surface impurities removed with a thoroughness hitherto unknown in locomotives.

The saddle is not intended to support the skimmer, but to enable it to set snugly at each side of the dry-pipe, and consequently any rigid suitable connection would answer the same purpose.

lVhat I claim as new, and desire to secure by Letters Patent of the United States, is

l. The combination of a boiler, a scumplate, a settling-drum located transversely under the boiler, and eduction and induction pipes connecting thev scum-plate and drum and drum and boiler, the said induction-pipe passing down and entering the water-leg of the boiler.

2. A scum-plate having two or more educ tion-openings located on a level with the plate and opening. upwardly, whereby a whirling vortical draw-off action is secured.

3. A scum-plate providedwith a hood or saddle, for the purpose described.

4. A scum-plate provided with a saddle and eduction-openings upon each side thereof.

5. A scum-plate provided. With a saddle and having two or more cduction-openings and return-bend channels leading therefrom.

6. A scumplate provided with a saddle and having a plurality of eduction-openings and return-bend channels cast integrally with the scum-plate and communicating with the eduction-openings.

7. A scum-plate having a plurality of drawoits and a Y-connection uniting the draw-offs, adapted to straddle the superheater, in combination therewith.

8. A scum-plate having a plurality of drawoffs and provided with return-bends communicating therewith, in combination with a Y or Siamese coupler adapted to straddle the superheater connecting the return-hen ds with the eduction-pipe.

9. The combination, with a boiler an'd its dry pipe or superheater, of a scumplate adapted to straddle said superheater.

10. A scum-plate having its central portion cut away to allow it to straddle the superheater or other interior tube of the boiler.

In testimony whereof I atfix my signature in presence of two witnesses.

FRANK W. HORNISH. lVitnesscs:

W. T. JoHNsoN, W. T. MAsoN. 

